To provide an easily-usable interdental brush not damaging gums, even if, sometimes, too much force is put thereon, since resistance is large when moving between teeth.SOLUTION: An interdental brush B includes a body part 1 which is long in a longer direction, a grip part 11 to be gripped by hand, provided on the middle in the longer direction of the body part 1, and a plurality of brushes 2 provided on one side of the body part 1. The plurality of brushes 2 are formed long in a longer direction, respectively, and the plurality of brushes 2 are attached so as to cross the longer direction of the body part 1, and an angle formed between one adjacent brush and the other adjacent brush is an acute angle.SELECTED DRAWING: Figure 1【課題】歯間の間を移動する際、抵抗が大きく、時には、力を入れすぎて歯茎に損傷を与えない等、使用勝手が良好な歯間ブラシを提供する。【解決手段】歯間ブラシＢは、長手方向に長い本体部１と、この本体部１の前記長手方向の中途部に設けられた手で把持する把持部１１と、本体部１の一方側に設けられた複数のブラシ２とを備え、複数のブラシ２は、それぞれ長手方向に長く形成され、複数のブラシ２は、本体部１の長手方向に交差するように取り付けられ、隣接する一方のブラシと隣接する他方のブラシとのなす角度が鋭角である。【選択図】図１
